Messes, problems and puzzles: Difference between revisions

Created page with "{{a|systems|}}{{d|messes, problem and puzzles||n|}}A coinage of Russell Ackoff and distinguishing between situations having neither a well-formed question nor an answer (“'''messes'''”), those which have a clear question but not an answer (“'''problems'''”) and those which have a clear question ''and'' a determinate answer (“'''puzzles'''”). JC notes parenthetically that a bucket is missing here: those situations in which there exists an ''answer'' but not..."